package com.hs.online;

public class OnlineCounter { 
	private static long online = 0;     
	public static long getOnline() { 
	return online; 
	}     
	public static void raise(){ 
	   online++; 
	}  
	public static void reduce(){ 
		if(online >0)
		       online--; 
		   
	  } 
	} 
